Oil-burner.



J. C. HINZ..

OIL BURNER.

APPLICATION FILED JULY 25.1911.

1,244,829. I Patented 0011.23, 1917.

ATTORNEY JULIUS 0. E1172, 0]! DETROIT, MICHIGAN.

Qua-BURNER.

Specification of Letters Patent.

Patented Oct. 23, 1917,

Substitute for renewal application Serial No. 78,777, filed February 16, 19 16. This application filed July 25,

' 1917. Serial No. 182,708. I 7

To all whom it may concern:

Be it known that I, J ULrUs (l'HINz, a citizen of the United States, residing at Detroit, in the county of Wayne and State of Michigan, have invented certain new and useful Improvements in Oil-Burners, of which the following is a specification.

This invention relates to burners for liquid hydro-carbon and the like, and it has for one of its objects the provision of a device of this character in which such liquid hydro-carbon may be intermingled with air or steam, so as to be thoroughly atomized :before the fuel enters the combustion chamber or the apertures in which it is to be used.

The invention has, furthermore, for its object the provision of a =burner which comprises a fuel inlet and an air inlet, the fuel inlet pipe being provided with means whereby the liquid fuel will be atomized to a more or less extent before it is intermingled with the air supply at the nozzle of the device.

The invention has also for its object the provision of a burner of this class in which crude oil or kerosene and the like may be used as a fuel, and in which a preliminary atomization of the volatile matter in the fuel may be caused in accordance with the grade of fuel used, by the introduction of either air alone, or steam alone, or a mix ture of both of these elements, such mixture being subject to being tempered or variedaccording to different requirements.

Further objects of the invention will hereinafter appear and be particularly defined in the claims,

The invention has been clearly illustrated in the accompanying drawing which represents a central longitudinal section of my improved device, and in which.:

The numeral 10 denotes a cylindrical casing having an air inlet nipple 11 in connection with a suitable air supply, (not shown), through a pipe 12. At the forwarder lefthand end of the casing is disposed a shell head or jet nozzle 13 which is in screwthreaded engagement with said casing and may be rotated relatively thereto so as to vary the space between the extreme front end thereof and the nozzle formed on a head 14 having a discharge opening 15 in axial alinement with a discharge opening 16 of the shell 13.

- The head 14 is secured to one end of a pipe 17 which extends longitudinally of the casmg 10 and is journaled for rotation in the cap-fitting 18, and particularly in the hub 19 thereof, said hub being provided with a packing box 20 to prevent air from traveling toward the right-hand end of the tube 17, so that consequently no air can enter-a' fuel-distributing chamber 21 provided in the cap fitting 18 and surrounding the tube 17 The liquid hydro-carbon fuel enters the burner through a pipe 22. and passes through'a conduit 23 and also through a pose in the pipe 17 it being understood thatin the present instance the pipe 17, although mounted for. rotation, is held against longitudinal movement, the rotation of the pipe being utilized for the purpose of manipulating or causing the rotation of the shell 13, from the rear end of the burner and without danger of the operator being exposed to the great heat generated at that end. In order to accomplish this result, the head 14 is preferably provided with a pair of diametrically opposite wings 27 each of which fits in a groove between inwardly extending flanges 28 provided on the inside of the shell 13. From the foregoing it will be understood that when the pipe 17 is rotated, such rotation will also be imparted to the barrel or shell 13, and the latter will then be turned onto the casing 10 to a more or less extent, thus varying the flow of air which can pass between theinside of the shell and the outer end of the head 14.

Means are provided for holding the tube 17 against longitudinal movement, while at erably of a plug 29 having at its left-hand end a shoulder which coiiperates with a chamber 32 may receive a supply of air alone, through a pipe 33 controlled by suitable Valve 34, or steam may be introduced through a pipe 35 which is controlled by a valve 36 or a mixture of both may pass through the connecting pipe 37 by proper regulation of the valves 34 and 36, which control the combination of fluids prevailing in the supply chamber 32. They can enter the interior of the plug through an aperture 38 which communicates with a Venturi nozzle 39 so that consequently any fluid entering through the aperture 26 inthe pipe 17 may be atomized or converted into the form of p a spray by the fluid issuing from the nozzle 39 and preparatory to its arrival at the nozzle 15 at the end of the burner. Practice has demonstrated that this preliminary and partial atomization of the liquid hydro-carbon will enhance the heat-producing'qualities of the liquid to a very material extent, a great deal of the burden imposed upon the main air supply passing through the casing 10 being therefore obviated or Very materially reduced.

From the foregoing it will be understood that the plug 29 and the tube 17 are rotated together, and in order to enable the operator to have free access, the head 29 is attached with its rear end to the rod 40 which is preferably in screw-threaded en agement therewith and has a hand whee 41 for handmanipnlation. The valve 25 has its stem similarly equipped with a hand wheel 42. The head 29 is, in the present instance, held against longitudinal movement at its outer end, by a gland 43 compressin a packing 44, so that consequently the bee 29 islocked between these packings 31' and 44.

Changes may be made in the general organization, as well as in the particular construction of my improved burner, without departing from the spirit of the'invention, especially in the spraying or atomizin member used in conjunction with the liquid fuel suppl and also in the manner of mounting t e several pieces for rotation and against longitudinal movement.

I claim 1. An oil burner comprising a casing having an air inlet and a fuel inlet, a jet nozzle in screw-threaded engagement with one end of said casing, a fuel tube co-rotatively connected with said nozzle, a spray head carried by and opening into said tube for preliminarily atomizing said fuel in the tube preparatory to its reaching said nozzle, means for holding-said tube against longiiterates tudinal movement in the casing, and means for supplying air under pressure to said spray head.

2. An oil burner comprising a casing having an air inlet and a fuel inlet, a jet nozzle in'screw-threaded engagement with said casing, a fuel tube co-rotatively connected with said nozzle and rotatable in the casing for positioning said jet nozzle longitudinally on the casing, a spray head secured tosaid tube, means for supplying air to said spray head, means for holding said spray head and the tube against longitudinal movement, and mians for rotating said spray head and the tu e. v

3. An oil burner comprising a casing, having a fuel inlet and an air inlet, a jet nozzle in screw-threaded engagement with the casing, a fuel tube extending through said casing and co-rotatively connected with said jet nozzle, a spray head secured to said tube, conduits for conducting steam and air to said head, means for rotating said fuel tube for variably positioning said jet nozzle longitudinally on the casing, and independent means for controlling the flow of air and steam through said conduits, respectively, into said spray head.

4. An oil burner comprising a casing having a fuel inlet and an air inlet, a jet nozzle for combining said fuel and air, a spray hea'd connected with said fuel inlet for pre liminarily atomizing said fuel before it reaches said jet nozzle, conduits for conducting steam and air, respectively, to said spray head, and independent means for controlling the flow of air and steam through said conduits, respectively.

5. An oil burner comprising a casing hav ing a fuel inlet and an air inlet, a jet nozzle in screw-threaded engagement with one end of said casing, a fuel tube extending through said casing and co-rotatively connected with said jet nozzle, a spray head secured to said tube and rotatable in the casing, a supply chamber surrounding the middle portion of said spray head and in communication with the interior thereof, conduits for conducting air and steam into said supply chamber, means for controlling the passage of steam and air through said conduits, respectively, a fuel chamber surrounding a portion of said fuel tube and communicating with the interior thereof, means for controlling the passage of fuel into said fuel chamber, and means for rotating said spray head and fuel tube for moving said jet nozzle on the cas ing.

6. An oil burner comprising a casing having near the outer end thereof 1 a supply chamber, a spray head extending longitudinally to both ends of said chamber and journaled in said casing, means for holding said spray head against longitudinal movement in the casing, a fuel tube secured to one end of said spray head and rotatable in means for rotating said spray head and the casing, a fuel conduit communicating said fuel tube for positioning the jet nozzle with the interior of said fuel tube at a point on the casing. between said spray head and the inner end In testimony that I claim the foregoingas 5 of said casing, an air conduit connected with my invention, I have signed my name in 15 the interior of said casing at a point in presence of two subscribing witnesses.

rear of said fuel conduit, a jet nozzle in JULIUS C. HINZ. screw-threaded engagement with the inner e Witnesses: end of said casing, means for co-rotatively WILLIAM J. LEHMANN, 10 connecting said tube and jet nozzle, and CHARLES R. ROBERTSON. 

